Israel's official response to the Riyadh Declaration

According to today's New York Times:

Israel reacted with a degree of ambivalence to the vote on Thursday. A statement issued by the Israeli Foreign Ministry stopped short of endorsing the proposal. “Israel is sincerely interested in pursuing a dialogue with those Arab states that desire peace with Israel, this in order to promote a process of normalization and cooperation,” it said. “Israel hopes that the Riyadh summit will contribute to this effort.”

It said that for a successful two-nation solution, “a direct dialogue between Israel and the Palestinians is necessary.”

The Arab leaders weren't exactly thrilled with Israel's reaction to their declaration:

“This does not express a positive stand of a country that wants peace,” Prince Saud al-Faisal, the Saudi foreign minister was reported as saying.

“The Arab world is in a state of agitation and cannot accept the way of procrastination any more," the secretary general of the Arab League, Amr Moussa, told reporters.

But as the Times went on to note:

Deputy Prime Minister appeared on the Arab satellite channel Al Jazeera to encourage Arab and Israeli leaders to hold direct talks on peace. “Let’s sit together as we are supposed to and work on it as we did before with Egypt, Jordan and the Palestinians,” he said.

Why not bring all the interested parties to the negotiating table?